A new technique for implanting a fine-wire microelectrode for chronic recording of unit activity from freely-moving mice

被引:4
|
作者
Oka, J [1 ]
Imanishi, M [1 ]
机构
[1] Meijo Univ, Fac Pharmaceut Sci, Dept Chem Pharmacol, Tempaku Ku, Nagoya, Aichi 4688503, Japan
关键词
chronic recording; fine-wire; hippocampus; magnet; mouse; single unit; sleep;
D O I
10.1016/S0168-0102(99)00106-6
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
We report here a newly developed chronic implantation technique using an epoxy-coated fine-stainless steel wire (33 mu m in diameter) to record single unit activity from the brain of freely-moving mice with as little tissue injury as possible. Since the fine-wire electrode is not capable of staying straight by itself or of penetrating into the brain, a pair of permanent neodymium magnets placed on a micromanipulator as well as below the animal's head was used for stereotaxic implantation to keep the fine-wire straight and strong by the magnetic fields. With those implanted electrodes recording of single units from the hippocampal CAI of freely-moving mice was performed during sleep and wakefulness. (C) 2000 Elsevier Science Ireland Ltd. All rights reserved.
引用
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页码:93 / 96
页数:4
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